Wrench



' Nov. 17I 1925-.

E.V T. MITCHELL WRENCH Filed Ju'ne 22. 1925 gwuntoc i Edu/'ani TMtckel Patented Nov. 17, 1925. vUhuru!) STATES EDWARD vfr. MITCHELL, on LisCo, NEBRASKA. t

A i WRENCH.

Application med (Tune 22, 1925. 'serial Nopesao.'

To all 'whom t 'may concern:

Be it known that'I, EDWARD T. MITCHELL,"

- vide means to keep the aws parallel to each other. f

vOther kobjects vwill appear as sure progresses. The drawings' are intended merely to indicate a possibleV embodiment of the invention. It is obvious that the actual needs of manufacture may necesf sitate certain mechanical changes. It is therefore not intended to limit the invention to the embodiment illustrated, but rather to define such limits in the appended claims. i Y

For a more detailed understanding of the invention attention is now A called to the drawings in which a preferred embodiment is shown illustrated.l In these drawings like parts are designated by like reference characters in all the views. y

Fig. 1 is a side view, partly in section, of the wrench;

Fig. 2 is a section substantially online 2 2 of Fig. 1;

Fig. 3 is an elevation of the fork;

Fig. 4 is a top view thereof; p Fig. 5 is a view of the transverse arm; Fig. 6 is a top view thereof; Fig. 7 is a section on line 7-7 of Fig. 1; Fig. and

Fig. 9 is a perspective view of the spring.

Referring now to the drawingsv in detail in which Vlike reference characters denote like parts throughout'the specification, nu-

meralv 1 designates a shank, 2 the upper 'the handle, and 4 a U-shaped transversevbar integral with the said handle.

8 is a view of the threaded sleeve;

sleeve 5 `having pivoting; points Gon which'` 1 the U-shaped transverse bar 4 having ar notch 4EL is adapted to pivot. vThe shank 1 is threaded on two sides as at -7 and engages lthe thread of a` sle'evenS'k having a slot 9.011 the outside. Y`

PATENT' The transverse bar 4 `as shown in Figs.

5 and 6 is Ushaped and has Aa crescenty shaped cutout 10 which cooperates with screwsv 11. to fit in the recess 13 of the bar held in place by the screwv 14.

This device is composed of parts-and can easily be assembled. The

4 and is ydownward pressure of thef lowe'r jaw is relativelyfew The lower jaw121is adapted Y distributed to the forked sleeve 5 andy thence l the sleeve 8 isV revolved and the forked sleeve 5 will move either up or down def they disclof pending on the direction of rotation.

The U-shaped bar 4` is connectedto the fork '5 by the screws 1l. Any motion of the fork will therefore be transmitted to the bar 4 and thence to the lower jaw. The springs 15 will normally keep the aws parallel to each other.

V.For assembling, the shank 1 and the threaded sleeve 8; isthen screwed in place and fastened to the fork by the screws 16. Then theU-shaped bar `is passed over theupper jaw 2 and placed in position on the pivoting points 6 andthe yscrews 1l are then inserted. This will allow ,rocking motion of the bar 4 and still prevent vsame from falling out of its place. l

And last, the lower jaw 12 is inserted; y

It will thus be seen that I have devised a simple and efficient lwrench having relatively few partsand easy to operate.A What I desire to secure by United States Letters Patent is:

gral with the said shank having teethat .to the threaded sleeve 8. For adjustment Cil fork is placed on the y 'l 1. In a device of the class described, inv combination, a shank, an upper jawv inte-.

on the said shank, a transverse bear having a handle, the said transverse lbar movably fastened tothe said forked sleeve, springs for normally. keeping the said transverse bar at right angles to said shank,ja lower jaw fitting in 4they forked .portion of the said transverse bar, and a threadedsleeve engagingy said shank for moving the said forked sleeve on Vthe said shank. j'-

. l f 2. In-a device of vthe vclass described, in Fitting around the shank l' is Ia forked combination, ashank, an upper j aw( integral a U-shaped transverse lloarrxhavng av handle; adapted to swing on the said Vpw'zotng points, means for preventing the said transverse bar from coming out of Contact with the said pivoting points',v a' vpair of springs for* normally keeping the said transverse bar'- atk right angles" to the sa'd shank, a replaceable'lower jaw, a threa'rded sleeve engaging: the said shank, a groove iny the said'E threaded sleeve, and pins adapted to hold the saidv threaded sleeve and said forkedsleeve together-pand allow for rotation of the threaded sleeve in order to ad'- just; the space between the said upper and lower jaws.

In tes't'rnony whereof I ax my signature.

EDWARD T. MITCHELL. Y 

